My research revolves around novel applications of diffraction theory to radar systems. This has included the development of a multilayer coherent backscattering simulator, which can efficiently simulate radar echoes from rough terrains with an arbitrary number of geological layers. This algorithm has been used to support studies pertaining to several air- or spaceborne radar sounders, including the RIME instrument of ESA's JUICE probe. I have also conducted research about the optimal engineering choices for novel radar systems with a specific application: one for lunar lava tube exploration, and one on the use of orbital arrays for radar sounding using, e.g., smallsats in formation flying. Another of my domains of interest is the use of Jupiter's radio emission to perform passive sounding of its icy moons through comprehensive simulations. Lastly, I have been working on general-relativistic satellite navigation systems, and in particular, on parametrised post-Newtonian descriptions of satellite navigation constellations.